Reinforced Concrete Ductile Coupled Walls and Seismic Design of Concrete Walls: SEAOC Seismic Design Manual Volume III, Examples 1 & 2

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Description

Reinforced Concrete Ductile Coupled Walls
While the greater ductility of coupled wall lateral systems compared to uncoupled wall lateral systems has been recognized in the engineering community for some time, prior US buildings did not distinguish the two. A Ductile Couple Wall lateral system has now been added to both ACI 318-19 and ASCE 7-22, which will allow engineers to use a higher R-factor of 8 for this system. The system comes with prescriptive requirements that ensure its highly ductile response. This presentation will go over this newly adopted lateral system, its associated design requirements and an illustrative design example on this system which will be included as Design Example 8 in the 2021 IBC SEAOC Seismic Design Manual

Seismic Design of Concrete Walls: SEAOC Seismic Design Manual Volume III, Examples 1 &2
SEAOC Seismic Design Manual Volume III Example 1 covers seismic design of a solid (cantilever) concrete wall, and Example 2 is a concrete wall with openings and coupling beams. Both examples will be presented in parallel, focusing on key concepts including: desired behavior of concrete walls, design for flexure, bar cut-offs and lap splices, design for shear, effect of gravity framing, detailing of wall boundaries, detailing of coupling beams, and wall stiffness. The presentation will draw on observations and lessons learned from past earthquakes, in addition to code requirements and recommendations from research.

Course will award 1.5 hours of continuing education
This course is Diamond Review approved in 49 states. New York does not accept hours from recordings.

Please note: This webinar is part of the Seismic Design Series and is not included in the NCSEA Webinar Subscription.

Contributors

Rahul Sharma, S.E.

Rahul Sharma is a Project Engineer at Hohbach-Lewin, Inc where he works on the design and analysis of both new and existing building. He is passionate about developing complex problem solving skills and generally takes on challenging projects. Rahul also gets involved in several standard committees such as the ASCE 7 Seismic Subcommittee, the Building Seismic Safety Council’s (BSSC) Provision Update Committee (PUC) and the SEAONC and SEAOC Seismology Committee.
Karl Telleen, S.E.

Karl, an Associate Principal at Maffei Engineering, has 15 years of professional experience, including a wide range of project types such as design of new steel and concrete structures, seismic evaluation and retrofit of existing buildings, seismic peer review of high-rise buildings, and design and analysis of solar arrays subjected to wind and seismic forces. He contributed to design guidelines and analysis approaches for solar arrays, including the SEAOC Solar Photovoltaic Systems Committee documents SEAOC PV1 (seismic design) and SEAOC PV2 (wind design). He has worked with manufacturers on product development of solar support structures, and he has performed technical investigations into wind-related failures.

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Description

Contributors

Rahul Sharma, S.E.

Karl Telleen, S.E.